GB1147057A - Injection moulding machine - Google Patents
Injection moulding machineInfo
- Publication number
- GB1147057A GB1147057A GB38847/66A GB3884766A GB1147057A GB 1147057 A GB1147057 A GB 1147057A GB 38847/66 A GB38847/66 A GB 38847/66A GB 3884766 A GB3884766 A GB 3884766A GB 1147057 A GB1147057 A GB 1147057A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cylinder
- valve
- screw
- pressure
- zone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/58—Details
- B29C45/63—Venting or degassing means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/47—Means for plasticising or homogenising the moulding material or forcing it into the mould using screws
- B29C45/48—Plasticising screw and injection screw comprising two separate screws
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
1,147,057. Injection moulding machines. GEBR. BUHLER. 31 Aug., 1966 [16 Sept., 1965], No. 38847/66. Heading B5A. Plastics material to be injected into a mould 3 is preplasticized in a cylinder 40 by a screw 43, degassed in a chamber 70 and fully plasticized in an injection cylinder 10 containing a rotatable and longitudinally movable screw 13 having different depths of thread and/or a thread of variable pitch. The cylinder 40 is pivotably mounted at 26 on the cylinder 10 and is connected via an interchangeable nozzle 42 to the chamber 70 which is itself removably attached to an inlet 15 of the cylinder 10 and has a transparent cover 74. The screws 13, 43 are rotated by hydraulic motors 25, 55 respectively, connected in series, the former being controlled by a valve 102, the latter being controlled relative to the adjustment of the former by a valve 109. During rotation of the screws and feeding of material from a hopper 48, a pressure builds up at the tip 431 of the screw 43 due to a predetermined pressure set in a cylinder 60, by a valve 120, causing retraction of the screw 43 from its nozzle 42. When the pressure exceeds the predetermined value due to the oil in a delivery line 95, preplasticized material is injected into the degassing chamber 70 and thence to the injection cylinder at a feed zone 133. It is then conveyed to a zone 131, further compression and complete plasticizing taking place in a zone 132. Successive feeding of material causes retraction of the screw 13 which is counteracted by a pressure acting through an outflow valve 114. When sufficient material is between zone 131 and the nozzle 12, material is injected in one shot, the velocity and pressure of which are determined by a regulating valve 111 and a pressure setting valve 112 respectively, the valve 113 being set to connect valves 112, 114, the oil flowing through a non-return valve 115 to initiate the shot. In a modification (Fig. 2, not shown) regulating valves 125, 126 are coupled so that if one is adjusted the other adjusts accordingly, the speed of motor 55 then always being at a certain ratio to that of motor 25. Heating and/or cooling ducts 16, 17 and 46, 47 may be provided. Electric motors may replace the hydraulic motors 25, 55. The cylinder 43 and chamber 70 may be removable.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1286765A CH445838A (en) | 1965-09-16 | 1965-09-16 | Screw injection molding machine |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1147057A true GB1147057A (en) | 1969-04-02 |
Family
ID=4387123
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB38847/66A Expired GB1147057A (en) | 1965-09-16 | 1966-08-31 | Injection moulding machine |
Country Status (6)
Country | Link |
---|---|
US (1) | US3481001A (en) |
BE (1) | BE686963A (en) |
CH (1) | CH445838A (en) |
DE (1) | DE1529815A1 (en) |
GB (1) | GB1147057A (en) |
SE (1) | SE320491B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4792424A (en) * | 1984-01-10 | 1988-12-20 | Loman Henricus G M | Method of injection molding PVC products |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1539204A (en) * | 1967-08-03 | 1968-09-13 | Plastimonde | Improvements to the plastic molding process by adjusting the control of the movement of the mold and the injection piston |
JPS4979667U (en) * | 1972-11-06 | 1974-07-10 | ||
GB1459140A (en) * | 1973-07-02 | 1976-12-22 | Intercole Automation Inc | Apparatus for compounding and conveying injection moulding materials |
US3880360A (en) * | 1973-12-05 | 1975-04-29 | Ford Motor Co | Method of preparing homogeneous thermosetting powder paint composition |
US3888393A (en) * | 1974-01-22 | 1975-06-10 | Mordeki Drori | Injection molder with ram movable indepently of screw feeder |
US4143108A (en) * | 1976-08-26 | 1979-03-06 | Monsanto Company | Method of injection molding nitrile articles |
US4387834A (en) * | 1979-10-01 | 1983-06-14 | Hpm Corporation | Combination thermoplastic and glass loaded thermosetting injection molding machine and method for operating same |
JPH0539858Y2 (en) * | 1988-04-11 | 1993-10-08 | ||
US5076777A (en) * | 1990-12-20 | 1991-12-31 | Cincinnati Milacron Inc. | Apparatus for coextruding plastics materials |
AT399311B (en) * | 1992-09-25 | 1995-04-25 | Engel Gmbh Maschbau | INJECTION UNIT FOR AN INJECTION MOLDING MACHINE |
JP2668328B2 (en) * | 1994-02-16 | 1997-10-27 | 日精樹脂工業株式会社 | Injection molding machine venting equipment |
JP3504014B2 (en) * | 1995-03-24 | 2004-03-08 | 東芝機械株式会社 | Extrusion method and apparatus for devolatilization of solid resin material |
US5601773A (en) * | 1995-05-12 | 1997-02-11 | Cincinnati Milacron Inc. | Co-injection machine |
US5770245A (en) * | 1995-09-18 | 1998-06-23 | Nissei Plastic Industrial Co., Ltd. | Preplasticizing injection machine |
JP3066521B2 (en) * | 1996-04-30 | 2000-07-17 | 日精樹脂工業株式会社 | Control method of pre-plastic injection molding machine |
DE19959174B4 (en) * | 1999-12-08 | 2006-03-23 | A-Z Formen- Und Maschinenbau Gmbh | extrusion device |
US7390184B2 (en) * | 2005-11-09 | 2008-06-24 | Centoco Plastics Limited | Dual injection manifold |
JP4390789B2 (en) * | 2006-08-02 | 2009-12-24 | 宏平 澤 | Integrated apparatus having a kneading part and an injection part |
DE102012101280A1 (en) * | 2012-02-17 | 2013-08-22 | Exipnos Ug | Injection Molding |
JP5802689B2 (en) * | 2013-01-16 | 2015-10-28 | 日精樹脂工業株式会社 | Two-component injection machine |
CN109986755A (en) * | 2018-12-03 | 2019-07-09 | 浙江华晨螺杆制造有限公司 | A kind of segmented plasticizing injecting device and its processing technology |
CN111716631A (en) * | 2020-06-30 | 2020-09-29 | 重庆欧洛森智能科技研究院有限公司 | Extrusion molding equipment and method for integrally molded door frame |
CN114147919B (en) * | 2021-10-19 | 2023-08-01 | 宁波力松注塑科技有限公司 | Injection molding machine nozzle and injection molding machine |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL96727C (en) * | ||||
US3067462A (en) * | 1959-06-10 | 1962-12-11 | Blaw Knox Co | Extruder for drying synthetic rubber |
US3254371A (en) * | 1963-11-01 | 1966-06-07 | Husky Mfg Tool Works Ltd | Injection-molding machine |
US3148231A (en) * | 1961-03-20 | 1964-09-08 | Eastman Kodak Co | Plastic extrusion, apparatus and control |
US3253303A (en) * | 1962-06-20 | 1966-05-31 | Rexford H Bradt | Injection molding apparatus |
-
1965
- 1965-09-16 CH CH1286765A patent/CH445838A/en unknown
- 1965-10-13 DE DE19651529815 patent/DE1529815A1/en active Pending
-
1966
- 1966-08-31 GB GB38847/66A patent/GB1147057A/en not_active Expired
- 1966-09-07 US US577677A patent/US3481001A/en not_active Expired - Lifetime
- 1966-09-15 SE SE12444/66A patent/SE320491B/xx unknown
- 1966-09-15 BE BE686963D patent/BE686963A/xx unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4792424A (en) * | 1984-01-10 | 1988-12-20 | Loman Henricus G M | Method of injection molding PVC products |
Also Published As
Publication number | Publication date |
---|---|
SE320491B (en) | 1970-02-09 |
DE1529815A1 (en) | 1970-01-08 |
US3481001A (en) | 1969-12-02 |
BE686963A (en) | 1967-03-15 |
CH445838A (en) | 1967-10-31 |
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